On 11/21/2016 05:36 AM, Dominik Vogt wrote:
On Fri, Nov 11, 2016 at 12:10:28PM +0100, Dominik Vogt wrote:
> On Mon, Nov 07, 2016 at 09:29:26PM +0100, Bernd Schmidt wrote:
> > On 10/31/2016 08:56 PM, Dominik Vogt wrote:
> >
> > >combine_simplify_rtx() tries to replace rtx expressions with just
On 11/21/2016 01:36 PM, Dominik Vogt wrote:
diff --git a/gcc/combine.c b/gcc/combine.c
index b22a274..457fe8a 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -5575,10 +5575,23 @@ combine_simplify_rtx (rtx x, machine_mode op0_mode, int
in_dest,
{
rtx cop1 = const0_rtx;
On Fri, Nov 11, 2016 at 12:10:28PM +0100, Dominik Vogt wrote:
> On Mon, Nov 07, 2016 at 09:29:26PM +0100, Bernd Schmidt wrote:
> > On 10/31/2016 08:56 PM, Dominik Vogt wrote:
> >
> > >combine_simplify_rtx() tries to replace rtx expressions with just two
> > >possible values with an experession
On Mon, Nov 07, 2016 at 09:29:26PM +0100, Bernd Schmidt wrote:
> On 10/31/2016 08:56 PM, Dominik Vogt wrote:
>
> >combine_simplify_rtx() tries to replace rtx expressions with just two
> >possible values with an experession that uses if_then_else:
> >
> > (if_then_else (condition) (value1)
On 10/31/2016 08:56 PM, Dominik Vogt wrote:
combine_simplify_rtx() tries to replace rtx expressions with just two
possible values with an experession that uses if_then_else:
(if_then_else (condition) (value1) (value2))
If the original expression is e.g.
(and (reg) (const_int 2))
I'm
Ping.
https://gcc.gnu.org/ml/gcc-patches/2016-10/msg02525.html
On Mon, Oct 31, 2016 at 08:56:10PM +0100, Dominik Vogt wrote:
> The attached patch does a little change in
> combine.c:combine_simplify_rtx() to prevent a "simplification"
> where the rtl code gets more complex in reality. The
The attached patch does a little change in
combine.c:combine_simplify_rtx() to prevent a "simplification"
where the rtl code gets more complex in reality. The complete
description of the change can be found in the commit comment in
the attached patch.
The patch reduces the number of patterns in
